Our ergonomic basic industrial polyurethane chairs adjust to fit most body types and workstations. Optional 2-way adjustable arm rests support a variety of arm placements for proper ergonomics. Our polyurethane chairs are easily cleaned, making them ideal for almost any environment. These medium Bench height chairs feature a black powder-coated steel base with fixed foot ring. Optional casters available and add 2-inches of height to the chair. Each ergonomic polyurethane chair is backed by our 15-year warranty, lifetime on the Pneumatic lift.